| 1 | /*********************************************************** |
| 2 | |
| 3 | Copyright 1987, 1998 The Open Group |
| 4 | |
| 5 | Permission to use, copy, modify, distribute, and sell this software and its |
| 6 | documentation for any purpose is hereby granted without fee, provided that |
| 7 | the above copyright notice appear in all copies and that both that |
| 8 | copyright notice and this permission notice appear in supporting |
| 9 | documentation. |
| 10 | |
| 11 | The above copyright notice and this permission notice shall be included in |
| 12 | all copies or substantial portions of the Software. |
| 13 | |
| 14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 15 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 16 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 17 | OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| 18 | AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 19 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 20 | |
| 21 | Except as contained in this notice, the name of The Open Group shall not be |
| 22 | used in advertising or otherwise to promote the sale, use or other dealings |
| 23 | in this Software without prior written authorization from The Open Group. |
| 24 | |
| 25 | Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. |
| 26 | |
| 27 | All Rights Reserved |
| 28 | |
| 29 | Permission to use, copy, modify, and distribute this software and its |
| 30 | documentation for any purpose and without fee is hereby granted, |
| 31 | provided that the above copyright notice appear in all copies and that |
| 32 | both that copyright notice and this permission notice appear in |
| 33 | supporting documentation, and that the name of Digital not be |
| 34 | used in advertising or publicity pertaining to distribution of the |
| 35 | software without specific, written prior permission. |
| 36 | |
| 37 | DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING |
| 38 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL |
| 39 | DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR |
| 40 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
| 41 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, |
| 42 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS |
| 43 | SOFTWARE. |
| 44 | |
| 45 | ******************************************************************/ |
| 46 | /***************************************************************** |
| 47 | |
| 48 | Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts. |
| 49 | |
| 50 | Permission is hereby granted, free of charge, to any person obtaining a copy |
| 51 | of this software and associated documentation files (the "Software"), to deal |
| 52 | in the Software without restriction, including without limitation the rights |
| 53 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 54 | copies of the Software. |
| 55 | |
| 56 | The above copyright notice and this permission notice shall be included in |
| 57 | all copies or substantial portions of the Software. |
| 58 | |
| 59 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 60 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 61 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 62 | DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING, |
| 63 | BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR OTHER LIABILITY, |
| 64 | WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR |
| 65 | IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 66 | |
| 67 | Except as contained in this notice, the name of Digital Equipment Corporation |
| 68 | shall not be used in advertising or otherwise to promote the sale, use or other |
| 69 | dealings in this Software without prior written authorization from Digital |
| 70 | Equipment Corporation. |
| 71 | |
| 72 | ******************************************************************/ |
| 73 | |
| 74 | #ifdef HAVE_DIX_CONFIG_H |
| 75 | #include <dix-config.h> |
| 76 | #endif |
| 77 | |
| 78 | #include <X11/X.h> |
| 79 | #include <X11/Xproto.h> |
| 80 | #include <X11/Xprotostr.h> |
| 81 | |
| 82 | #include "misc.h" |
| 83 | #include "regionstr.h" |
| 84 | #include "scrnintstr.h" |
| 85 | #include "gcstruct.h" |
| 86 | #include "windowstr.h" |
| 87 | #include "pixmap.h" |
| 88 | #include "input.h" |
| 89 | |
| 90 | #include "dixstruct.h" |
| 91 | #include "mi.h" |
| 92 | #include <X11/Xmd.h> |
| 93 | |
| 94 | #include "globals.h" |
| 95 | |
| 96 | #ifdef PANORAMIX |
| 97 | #include "panoramiX.h" |
| 98 | #include "panoramiXsrv.h" |
| 99 | #endif |
| 100 | |
| 101 | /* |
| 102 | machine-independent graphics exposure code. any device that uses |
| 103 | the region package can call this. |
| 104 | */ |
| 105 | |
| 106 | #ifndef RECTLIMIT |
| 107 | #define RECTLIMIT 25 /* pick a number, any number > 8 */ |
| 108 | #endif |
| 109 | |
| 110 | /* miHandleExposures |
| 111 | generate a region for exposures for areas that were copied from obscured or |
| 112 | non-existent areas to non-obscured areas of the destination. Paint the |
| 113 | background for the region, if the destination is a window. |
| 114 | |
| 115 | NOTE: |
| 116 | this should generally be called, even if graphicsExposures is false, |
| 117 | because this is where bits get recovered from backing store. |
| 118 | |
| 119 | NOTE: |
| 120 | added argument 'plane' is used to indicate how exposures from backing |
| 121 | store should be accomplished. If plane is 0 (i.e. no bit plane), CopyArea |
| 122 | should be used, else a CopyPlane of the indicated plane will be used. The |
| 123 | exposing is done by the backing store's GraphicsExpose function, of course. |
| 124 | |
| 125 | */ |
| 126 | |
| 127 | RegionPtr |
| 128 | miHandleExposures(DrawablePtr pSrcDrawable, DrawablePtr pDstDrawable, |
| 129 | GCPtr pGC, int srcx, int srcy, int width, int height, |
| 130 | int dstx, int dsty, unsigned long plane) |
| 131 | { |
| 132 | RegionPtr prgnSrcClip; /* drawable-relative source clip */ |
| 133 | RegionRec rgnSrcRec; |
| 134 | RegionPtr prgnDstClip; /* drawable-relative dest clip */ |
| 135 | RegionRec rgnDstRec; |
| 136 | BoxRec srcBox; /* unclipped source */ |
| 137 | RegionRec rgnExposed; /* exposed region, calculated source- |
| 138 | relative, made dst relative to |
| 139 | intersect with visible parts of |
| 140 | dest and send events to client, |
| 141 | and then screen relative to paint |
| 142 | the window background |
| 143 | */ |
| 144 | WindowPtr pSrcWin; |
| 145 | BoxRec expBox; |
| 146 | Bool extents; |
| 147 | |
| 148 | /* avoid work if we can */ |
| 149 | if (!pGC->graphicsExposures && |
| 150 | (pDstDrawable->type == DRAWABLE_PIXMAP) && |
| 151 | ((pSrcDrawable->type == DRAWABLE_PIXMAP) || |
| 152 | (((WindowPtr) pSrcDrawable)->backStorage == NULL))) |
| 153 | return NULL; |
| 154 | |
| 155 | srcBox.x1 = srcx; |
| 156 | srcBox.y1 = srcy; |
| 157 | srcBox.x2 = srcx + width; |
| 158 | srcBox.y2 = srcy + height; |
| 159 | |
| 160 | if (pSrcDrawable->type != DRAWABLE_PIXMAP) { |
| 161 | BoxRec TsrcBox; |
| 162 | |
| 163 | TsrcBox.x1 = srcx + pSrcDrawable->x; |
| 164 | TsrcBox.y1 = srcy + pSrcDrawable->y; |
| 165 | TsrcBox.x2 = TsrcBox.x1 + width; |
| 166 | TsrcBox.y2 = TsrcBox.y1 + height; |
| 167 | pSrcWin = (WindowPtr) pSrcDrawable; |
| 168 | if (pGC->subWindowMode == IncludeInferiors) { |
| 169 | prgnSrcClip = NotClippedByChildren(pSrcWin); |
| 170 | if ((RegionContainsRect(prgnSrcClip, &TsrcBox)) == rgnIN) { |
| 171 | RegionDestroy(prgnSrcClip); |
| 172 | return NULL; |
| 173 | } |
| 174 | } |
| 175 | else { |
| 176 | if ((RegionContainsRect(&pSrcWin->clipList, &TsrcBox)) == rgnIN) |
| 177 | return NULL; |
| 178 | prgnSrcClip = &rgnSrcRec; |
| 179 | RegionNull(prgnSrcClip); |
| 180 | RegionCopy(prgnSrcClip, &pSrcWin->clipList); |
| 181 | } |
| 182 | RegionTranslate(prgnSrcClip, -pSrcDrawable->x, -pSrcDrawable->y); |
| 183 | } |
| 184 | else { |
| 185 | BoxRec box; |
| 186 | |
| 187 | if ((srcBox.x1 >= 0) && (srcBox.y1 >= 0) && |
| 188 | (srcBox.x2 <= pSrcDrawable->width) && |
| 189 | (srcBox.y2 <= pSrcDrawable->height)) |
| 190 | return NULL; |
| 191 | |
| 192 | box.x1 = 0; |
| 193 | box.y1 = 0; |
| 194 | box.x2 = pSrcDrawable->width; |
| 195 | box.y2 = pSrcDrawable->height; |
| 196 | prgnSrcClip = &rgnSrcRec; |
| 197 | RegionInit(prgnSrcClip, &box, 1); |
| 198 | pSrcWin = NULL; |
| 199 | } |
| 200 | |
| 201 | if (pDstDrawable == pSrcDrawable) { |
| 202 | prgnDstClip = prgnSrcClip; |
| 203 | } |
| 204 | else if (pDstDrawable->type != DRAWABLE_PIXMAP) { |
| 205 | if (pGC->subWindowMode == IncludeInferiors) { |
| 206 | prgnDstClip = NotClippedByChildren((WindowPtr) pDstDrawable); |
| 207 | } |
| 208 | else { |
| 209 | prgnDstClip = &rgnDstRec; |
| 210 | RegionNull(prgnDstClip); |
| 211 | RegionCopy(prgnDstClip, &((WindowPtr) pDstDrawable)->clipList); |
| 212 | } |
| 213 | RegionTranslate(prgnDstClip, -pDstDrawable->x, -pDstDrawable->y); |
| 214 | } |
| 215 | else { |
| 216 | BoxRec box; |
| 217 | |
| 218 | box.x1 = 0; |
| 219 | box.y1 = 0; |
| 220 | box.x2 = pDstDrawable->width; |
| 221 | box.y2 = pDstDrawable->height; |
| 222 | prgnDstClip = &rgnDstRec; |
| 223 | RegionInit(prgnDstClip, &box, 1); |
| 224 | } |
| 225 | |
| 226 | /* drawable-relative source region */ |
| 227 | RegionInit(&rgnExposed, &srcBox, 1); |
| 228 | |
| 229 | /* now get the hidden parts of the source box */ |
| 230 | RegionSubtract(&rgnExposed, &rgnExposed, prgnSrcClip); |
| 231 | |
| 232 | /* move them over the destination */ |
| 233 | RegionTranslate(&rgnExposed, dstx - srcx, dsty - srcy); |
| 234 | |
| 235 | /* intersect with visible areas of dest */ |
| 236 | RegionIntersect(&rgnExposed, &rgnExposed, prgnDstClip); |
| 237 | |
| 238 | /* intersect with client clip region. */ |
| 239 | if (pGC->clientClipType == CT_REGION) |
| 240 | RegionIntersect(&rgnExposed, &rgnExposed, pGC->clientClip); |
| 241 | |
| 242 | /* |
| 243 | * If we have LOTS of rectangles, we decide to take the extents |
| 244 | * and force an exposure on that. This should require much less |
| 245 | * work overall, on both client and server. This is cheating, but |
| 246 | * isn't prohibited by the protocol ("spontaneous combustion" :-) |
| 247 | * for windows. |
| 248 | */ |
| 249 | extents = pGC->graphicsExposures && |
| 250 | (RegionNumRects(&rgnExposed) > RECTLIMIT) && |
| 251 | (pDstDrawable->type != DRAWABLE_PIXMAP); |
| 252 | if (pSrcWin) { |
| 253 | RegionPtr region; |
| 254 | |
| 255 | if (!(region = wClipShape(pSrcWin))) |
| 256 | region = wBoundingShape(pSrcWin); |
| 257 | /* |
| 258 | * If you try to CopyArea the extents of a shaped window, compacting the |
| 259 | * exposed region will undo all our work! |
| 260 | */ |
| 261 | if (extents && pSrcWin && region && |
| 262 | (RegionContainsRect(region, &srcBox) != rgnIN)) |
| 263 | extents = FALSE; |
| 264 | } |
| 265 | if (extents) { |
| 266 | expBox = *RegionExtents(&rgnExposed); |
| 267 | RegionReset(&rgnExposed, &expBox); |
| 268 | } |
| 269 | if ((pDstDrawable->type != DRAWABLE_PIXMAP) && |
| 270 | (((WindowPtr) pDstDrawable)->backgroundState != None)) { |
| 271 | WindowPtr pWin = (WindowPtr) pDstDrawable; |
| 272 | |
| 273 | /* make the exposed area screen-relative */ |
| 274 | RegionTranslate(&rgnExposed, pDstDrawable->x, pDstDrawable->y); |
| 275 | |
| 276 | if (extents) { |
| 277 | /* miPaintWindow doesn't clip, so we have to */ |
| 278 | RegionIntersect(&rgnExposed, &rgnExposed, &pWin->clipList); |
| 279 | } |
| 280 | miPaintWindow((WindowPtr) pDstDrawable, &rgnExposed, PW_BACKGROUND); |
| 281 | |
| 282 | if (extents) { |
| 283 | RegionReset(&rgnExposed, &expBox); |
| 284 | } |
| 285 | else |
| 286 | RegionTranslate(&rgnExposed, -pDstDrawable->x, -pDstDrawable->y); |
| 287 | } |
| 288 | if (prgnDstClip == &rgnDstRec) { |
| 289 | RegionUninit(prgnDstClip); |
| 290 | } |
| 291 | else if (prgnDstClip != prgnSrcClip) { |
| 292 | RegionDestroy(prgnDstClip); |
| 293 | } |
| 294 | |
| 295 | if (prgnSrcClip == &rgnSrcRec) { |
| 296 | RegionUninit(prgnSrcClip); |
| 297 | } |
| 298 | else { |
| 299 | RegionDestroy(prgnSrcClip); |
| 300 | } |
| 301 | |
| 302 | if (pGC->graphicsExposures) { |
| 303 | /* don't look */ |
| 304 | RegionPtr exposed = RegionCreate(NullBox, 0); |
| 305 | |
| 306 | *exposed = rgnExposed; |
| 307 | return exposed; |
| 308 | } |
| 309 | else { |
| 310 | RegionUninit(&rgnExposed); |
| 311 | return NULL; |
| 312 | } |
| 313 | } |
| 314 | |
| 315 | /* send GraphicsExpose events, or a NoExpose event, based on the region */ |
| 316 | |
| 317 | void |
| 318 | miSendGraphicsExpose(ClientPtr client, RegionPtr pRgn, XID drawable, |
| 319 | int major, int minor) |
| 320 | { |
| 321 | if (pRgn && !RegionNil(pRgn)) { |
| 322 | xEvent *pEvent; |
| 323 | xEvent *pe; |
| 324 | BoxPtr pBox; |
| 325 | int i; |
| 326 | int numRects; |
| 327 | |
| 328 | numRects = RegionNumRects(pRgn); |
| 329 | pBox = RegionRects(pRgn); |
| 330 | if (!(pEvent = calloc(numRects, sizeof(xEvent)))) |
| 331 | return; |
| 332 | pe = pEvent; |
| 333 | |
| 334 | for (i = 1; i <= numRects; i++, pe++, pBox++) { |
| 335 | pe->u.u.type = GraphicsExpose; |
| 336 | pe->u.graphicsExposure.drawable = drawable; |
| 337 | pe->u.graphicsExposure.x = pBox->x1; |
| 338 | pe->u.graphicsExposure.y = pBox->y1; |
| 339 | pe->u.graphicsExposure.width = pBox->x2 - pBox->x1; |
| 340 | pe->u.graphicsExposure.height = pBox->y2 - pBox->y1; |
| 341 | pe->u.graphicsExposure.count = numRects - i; |
| 342 | pe->u.graphicsExposure.majorEvent = major; |
| 343 | pe->u.graphicsExposure.minorEvent = minor; |
| 344 | } |
| 345 | /* GraphicsExpose is a "critical event", which TryClientEvents |
| 346 | * handles specially. */ |
| 347 | TryClientEvents(client, NULL, pEvent, numRects, |
| 348 | (Mask) 0, NoEventMask, NullGrab); |
| 349 | free(pEvent); |
| 350 | } |
| 351 | else { |
| 352 | xEvent event = { |
| 353 | .u.noExposure.drawable = drawable, |
| 354 | .u.noExposure.majorEvent = major, |
| 355 | .u.noExposure.minorEvent = minor |
| 356 | }; |
| 357 | event.u.u.type = NoExpose; |
| 358 | WriteEventsToClient(client, 1, &event); |
| 359 | } |
| 360 | } |
| 361 | |
| 362 | void |
| 363 | miSendExposures(WindowPtr pWin, RegionPtr pRgn, int dx, int dy) |
| 364 | { |
| 365 | BoxPtr pBox; |
| 366 | int numRects; |
| 367 | xEvent *pEvent, *pe; |
| 368 | int i; |
| 369 | |
| 370 | pBox = RegionRects(pRgn); |
| 371 | numRects = RegionNumRects(pRgn); |
| 372 | if (!(pEvent = calloc(1, numRects * sizeof(xEvent)))) |
| 373 | return; |
| 374 | |
| 375 | for (i = numRects, pe = pEvent; --i >= 0; pe++, pBox++) { |
| 376 | pe->u.u.type = Expose; |
| 377 | pe->u.expose.window = pWin->drawable.id; |
| 378 | pe->u.expose.x = pBox->x1 - dx; |
| 379 | pe->u.expose.y = pBox->y1 - dy; |
| 380 | pe->u.expose.width = pBox->x2 - pBox->x1; |
| 381 | pe->u.expose.height = pBox->y2 - pBox->y1; |
| 382 | pe->u.expose.count = i; |
| 383 | } |
| 384 | |
| 385 | #ifdef PANORAMIX |
| 386 | if (!noPanoramiXExtension) { |
| 387 | int scrnum = pWin->drawable.pScreen->myNum; |
| 388 | int x = 0, y = 0; |
| 389 | XID realWin = 0; |
| 390 | |
| 391 | if (!pWin->parent) { |
| 392 | x = screenInfo.screens[scrnum]->x; |
| 393 | y = screenInfo.screens[scrnum]->y; |
| 394 | pWin = screenInfo.screens[0]->root; |
| 395 | realWin = pWin->drawable.id; |
| 396 | } |
| 397 | else if (scrnum) { |
| 398 | PanoramiXRes *win; |
| 399 | |
| 400 | win = PanoramiXFindIDByScrnum(XRT_WINDOW, |
| 401 | pWin->drawable.id, scrnum); |
| 402 | if (!win) { |
| 403 | free(pEvent); |
| 404 | return; |
| 405 | } |
| 406 | realWin = win->info[0].id; |
| 407 | dixLookupWindow(&pWin, realWin, serverClient, DixSendAccess); |
| 408 | } |
| 409 | if (x || y || scrnum) |
| 410 | for (i = 0; i < numRects; i++) { |
| 411 | pEvent[i].u.expose.window = realWin; |
| 412 | pEvent[i].u.expose.x += x; |
| 413 | pEvent[i].u.expose.y += y; |
| 414 | } |
| 415 | } |
| 416 | #endif |
| 417 | |
| 418 | DeliverEvents(pWin, pEvent, numRects, NullWindow); |
| 419 | |
| 420 | free(pEvent); |
| 421 | } |
| 422 | |
| 423 | void |
| 424 | miWindowExposures(WindowPtr pWin, RegionPtr prgn, RegionPtr other_exposed) |
| 425 | { |
| 426 | RegionPtr exposures = prgn; |
| 427 | |
| 428 | if ((prgn && !RegionNil(prgn)) || |
| 429 | (exposures && !RegionNil(exposures)) || other_exposed) { |
| 430 | RegionRec expRec; |
| 431 | int clientInterested; |
| 432 | |
| 433 | /* |
| 434 | * Restore from backing-store FIRST. |
| 435 | */ |
| 436 | clientInterested = |
| 437 | (pWin->eventMask | wOtherEventMasks(pWin)) & ExposureMask; |
| 438 | if (other_exposed) { |
| 439 | if (exposures) { |
| 440 | RegionUnion(other_exposed, exposures, other_exposed); |
| 441 | if (exposures != prgn) |
| 442 | RegionDestroy(exposures); |
| 443 | } |
| 444 | exposures = other_exposed; |
| 445 | } |
| 446 | if (clientInterested && exposures && |
| 447 | (RegionNumRects(exposures) > RECTLIMIT)) { |
| 448 | /* |
| 449 | * If we have LOTS of rectangles, we decide to take the extents |
| 450 | * and force an exposure on that. This should require much less |
| 451 | * work overall, on both client and server. This is cheating, but |
| 452 | * isn't prohibited by the protocol ("spontaneous combustion" :-). |
| 453 | */ |
| 454 | BoxRec box; |
| 455 | |
| 456 | box = *RegionExtents(exposures); |
| 457 | if (exposures == prgn) { |
| 458 | exposures = &expRec; |
| 459 | RegionInit(exposures, &box, 1); |
| 460 | RegionReset(prgn, &box); |
| 461 | } |
| 462 | else { |
| 463 | RegionReset(exposures, &box); |
| 464 | RegionUnion(prgn, prgn, exposures); |
| 465 | } |
| 466 | /* miPaintWindow doesn't clip, so we have to */ |
| 467 | RegionIntersect(prgn, prgn, &pWin->clipList); |
| 468 | } |
| 469 | if (prgn && !RegionNil(prgn)) |
| 470 | miPaintWindow(pWin, prgn, PW_BACKGROUND); |
| 471 | if (clientInterested && exposures && !RegionNil(exposures)) |
| 472 | miSendExposures(pWin, exposures, |
| 473 | pWin->drawable.x, pWin->drawable.y); |
| 474 | if (exposures == &expRec) { |
| 475 | RegionUninit(exposures); |
| 476 | } |
| 477 | else if (exposures && exposures != prgn && exposures != other_exposed) |
| 478 | RegionDestroy(exposures); |
| 479 | if (prgn) |
| 480 | RegionEmpty(prgn); |
| 481 | } |
| 482 | else if (exposures && exposures != prgn) |
| 483 | RegionDestroy(exposures); |
| 484 | } |
| 485 | |
| 486 | #ifdef ROOTLESS |
| 487 | /* Ugly, ugly, but we lost our hooks into miPaintWindow... =/ */ |
| 488 | void RootlessSetPixmapOfAncestors(WindowPtr pWin); |
| 489 | void RootlessStartDrawing(WindowPtr pWin); |
| 490 | void RootlessDamageRegion(WindowPtr pWin, RegionPtr prgn); |
| 491 | Bool IsFramedWindow(WindowPtr pWin); |
| 492 | #endif |
| 493 | |
| 494 | void |
| 495 | miPaintWindow(WindowPtr pWin, RegionPtr prgn, int what) |
| 496 | { |
| 497 | ScreenPtr pScreen = pWin->drawable.pScreen; |
| 498 | ChangeGCVal gcval[6]; |
| 499 | BITS32 gcmask; |
| 500 | GCPtr pGC; |
| 501 | int i; |
| 502 | BoxPtr pbox; |
| 503 | xRectangle *prect; |
| 504 | int numRects; |
| 505 | |
| 506 | /* |
| 507 | * Distance from screen to destination drawable, use this |
| 508 | * to adjust rendering coordinates which come in in screen space |
| 509 | */ |
| 510 | int draw_x_off, draw_y_off; |
| 511 | |
| 512 | /* |
| 513 | * Tile offset for drawing; these need to align the tile |
| 514 | * to the appropriate window origin |
| 515 | */ |
| 516 | int tile_x_off, tile_y_off; |
| 517 | PixUnion fill; |
| 518 | Bool solid = TRUE; |
| 519 | DrawablePtr drawable = &pWin->drawable; |
| 520 | |
| 521 | #ifdef ROOTLESS |
| 522 | if (!drawable || drawable->type == UNDRAWABLE_WINDOW) |
| 523 | return; |
| 524 | |
| 525 | if (IsFramedWindow(pWin)) { |
| 526 | RootlessStartDrawing(pWin); |
| 527 | RootlessDamageRegion(pWin, prgn); |
| 528 | |
| 529 | if (pWin->backgroundState == ParentRelative) { |
| 530 | if ((what == PW_BACKGROUND) || |
| 531 | (what == PW_BORDER && !pWin->borderIsPixel)) |
| 532 | RootlessSetPixmapOfAncestors(pWin); |
| 533 | } |
| 534 | } |
| 535 | #endif |
| 536 | |
| 537 | if (what == PW_BACKGROUND) { |
| 538 | while (pWin->backgroundState == ParentRelative) |
| 539 | pWin = pWin->parent; |
| 540 | |
| 541 | draw_x_off = drawable->x; |
| 542 | draw_y_off = drawable->y; |
| 543 | |
| 544 | tile_x_off = pWin->drawable.x - draw_x_off; |
| 545 | tile_y_off = pWin->drawable.y - draw_y_off; |
| 546 | fill = pWin->background; |
| 547 | #ifdef COMPOSITE |
| 548 | if (pWin->inhibitBGPaint) |
| 549 | return; |
| 550 | #endif |
| 551 | switch (pWin->backgroundState) { |
| 552 | case None: |
| 553 | return; |
| 554 | case BackgroundPixmap: |
| 555 | solid = FALSE; |
| 556 | break; |
| 557 | } |
| 558 | } |
| 559 | else { |
| 560 | PixmapPtr pixmap; |
| 561 | |
| 562 | tile_x_off = drawable->x; |
| 563 | tile_y_off = drawable->y; |
| 564 | |
| 565 | /* servers without pixmaps draw their own borders */ |
| 566 | if (!pScreen->GetWindowPixmap) |
| 567 | return; |
| 568 | pixmap = (*pScreen->GetWindowPixmap) ((WindowPtr) drawable); |
| 569 | drawable = &pixmap->drawable; |
| 570 | #ifdef COMPOSITE |
| 571 | draw_x_off = pixmap->screen_x; |
| 572 | draw_y_off = pixmap->screen_y; |
| 573 | tile_x_off -= draw_x_off; |
| 574 | tile_y_off -= draw_y_off; |
| 575 | #else |
| 576 | draw_x_off = 0; |
| 577 | draw_y_off = 0; |
| 578 | #endif |
| 579 | fill = pWin->border; |
| 580 | solid = pWin->borderIsPixel; |
| 581 | } |
| 582 | |
| 583 | gcval[0].val = GXcopy; |
| 584 | gcmask = GCFunction; |
| 585 | |
| 586 | #ifdef ROOTLESS_SAFEALPHA |
| 587 | /* Bit mask for alpha channel with a particular number of bits per |
| 588 | * pixel. Note that we only care for 32bpp data. Mac OS X uses planar |
| 589 | * alpha for 16bpp. |
| 590 | */ |
| 591 | #define RootlessAlphaMask(bpp) ((bpp) == 32 ? 0xFF000000 : 0) |
| 592 | #endif |
| 593 | |
| 594 | if (solid) { |
| 595 | #ifdef ROOTLESS_SAFEALPHA |
| 596 | gcval[1].val = |
| 597 | fill.pixel | RootlessAlphaMask(pWin->drawable.bitsPerPixel); |
| 598 | #else |
| 599 | gcval[1].val = fill.pixel; |
| 600 | #endif |
| 601 | gcval[2].val = FillSolid; |
| 602 | gcmask |= GCForeground | GCFillStyle; |
| 603 | } |
| 604 | else { |
| 605 | int c = 1; |
| 606 | |
| 607 | #ifdef ROOTLESS_SAFEALPHA |
| 608 | gcval[c++].val = |
| 609 | ((CARD32) -1) & ~RootlessAlphaMask(pWin->drawable.bitsPerPixel); |
| 610 | gcmask |= GCPlaneMask; |
| 611 | #endif |
| 612 | gcval[c++].val = FillTiled; |
| 613 | gcval[c++].ptr = (pointer) fill.pixmap; |
| 614 | gcval[c++].val = tile_x_off; |
| 615 | gcval[c++].val = tile_y_off; |
| 616 | gcmask |= GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin; |
| 617 | } |
| 618 | |
| 619 | prect = malloc(RegionNumRects(prgn) * sizeof(xRectangle)); |
| 620 | if (!prect) |
| 621 | return; |
| 622 | |
| 623 | pGC = GetScratchGC(drawable->depth, drawable->pScreen); |
| 624 | if (!pGC) { |
| 625 | free(prect); |
| 626 | return; |
| 627 | } |
| 628 | |
| 629 | ChangeGC(NullClient, pGC, gcmask, gcval); |
| 630 | ValidateGC(drawable, pGC); |
| 631 | |
| 632 | numRects = RegionNumRects(prgn); |
| 633 | pbox = RegionRects(prgn); |
| 634 | for (i = numRects; --i >= 0; pbox++, prect++) { |
| 635 | prect->x = pbox->x1 - draw_x_off; |
| 636 | prect->y = pbox->y1 - draw_y_off; |
| 637 | prect->width = pbox->x2 - pbox->x1; |
| 638 | prect->height = pbox->y2 - pbox->y1; |
| 639 | } |
| 640 | prect -= numRects; |
| 641 | (*pGC->ops->PolyFillRect) (drawable, pGC, numRects, prect); |
| 642 | free(prect); |
| 643 | |
| 644 | FreeScratchGC(pGC); |
| 645 | } |
| 646 | |
| 647 | /* MICLEARDRAWABLE -- sets the entire drawable to the background color of |
| 648 | * the GC. Useful when we have a scratch drawable and need to initialize |
| 649 | * it. */ |
| 650 | void |
| 651 | miClearDrawable(DrawablePtr pDraw, GCPtr pGC) |
| 652 | { |
| 653 | ChangeGCVal fg, bg; |
| 654 | xRectangle rect; |
| 655 | |
| 656 | fg.val = pGC->fgPixel; |
| 657 | bg.val = pGC->bgPixel; |
| 658 | rect.x = 0; |
| 659 | rect.y = 0; |
| 660 | rect.width = pDraw->width; |
| 661 | rect.height = pDraw->height; |
| 662 | ChangeGC(NullClient, pGC, GCForeground, &bg); |
| 663 | ValidateGC(pDraw, pGC); |
| 664 | (*pGC->ops->PolyFillRect) (pDraw, pGC, 1, &rect); |
| 665 | ChangeGC(NullClient, pGC, GCForeground, &fg); |
| 666 | ValidateGC(pDraw, pGC); |
| 667 | } |